Clutch for axminster-loom tube frames



Dec. 30, 1930. J. LYLE CLUTCH FOR AXMINSTER LOOM TUBE FRAMES Filed Nov.11, 1929 fNVE/VTUR JOHN L YA. 5

A TTURA/Efi Patented Dec. 39, 1930 arr JOHN LYLE, F PHILADELPHIA,PENNSYLVANIA, ASSIGNOR TO CROMPTON & KNOXVIIES 1300135 iTOI*..-3.ZS, OFWQB-CESTEE, MASSACHUSETTS, A CORPORATION OF IEIASSACH'U- CLUTCH FOR,AXMINSTER-LOOM TUBE FRAMES Application filed November 11, 1929. SerialNo. 406,277.

tend between transporting chains which. are

given step by step movements to present the tube frames one at a time toan operative position from which they can be moved W toward the clothfor the formation of a row of tufts. Transferrer arms are provided tomove the tube frames from the chains, but it occasionally happensthatone or the other of theends of the tube frame will become entangled withthe chain so that it cannot move downwardly. Under these conditions itis desirable to stop the loom. It is an important object of my presentinvention to provide a device mounted on the transferrer arm whichshall'engagethe spool to apply friction thereto and at the same time becapable of having holding engagement with the spool to co-act with astopmotion operative to stop the loom should a tube n frame stick in thechain.

Certain of the spools at present in use have steel heads with outwardlyprojecting horizontal flanges and it is a further object of my presentinvention to provide a plunger Q; on the transferrer arm effective tolie over the flange of the spool head so as to be held in raisedposition thereby should ,a tube frame stick in the transporting chain.this aspect of the inventlon t 1s not essential that the device formingan important part 59 set forth, 7

forth herein.

Fig. 1 is an end elevation of a portion of the loom having my inventionapplied thereto,

Fig. 2 is a front elevation of certain parts shown in Fig. 1 on anenlarged scale, the clutch being in an intermediate position which itassumes when moving toward the tube frame,

Fig. 3 is a view similar to Fig. 2 but with the clutch in engagingposition with the tube frame,

Fig. 1 is a top plan view taken in the direction of arrow 4;, Fig. 8,and

Fig. is a vertical section on line 5-5 of Fig.2.

Referring particularly to Fig. 1 I have shown a loom frame 10 and arotating cam plate 11 having thereon a tappet 12. The latter engages ahorizontal arm 13 of a lever 1% pivoted as at 15 to a fixed bracket 16.The upper end of the lever 14 has pivoted thereto as at 17 a link 18which is caused to reciprocate periodically so that a hooked portion 19there of will move to the left as viewed in Fig.1.

' A knock-0E lever 20 pivoted at 21 has a boss 22 which is adapted to beengaged by the hook 19 under certain conditions.

The right hand end of the link 18 is pivoted as at 23 to the lower endof a vertical push rod 2d the upper end of which is guided through aneye 25. The upper end of the rod is positioned for engagement with someportion of a transferrer device having an arm 26. The

latter is pivoted as at 27 and moves down wardly for each advancemovement of the transporting chain 28. The power to raise thetransferrer arm up and down may be transmitted through a rod 29 and thetransferrer arm may be'pivoted about a vertical axis 30 on a supportinglever 31.

Under normal operation it is to be understood that the tube frames whichare arranged in a series are presented to operative position bythe-chains 28, only one of which is set lhe transferrer arm 26 will thenmove around the axis '30, moving the clutches 32, of, which only one isset forth herein, toward the tube frame in operative position.Thereafter, by means of rod 29, the

- tube frame and transferrer arms are lowered to tuft forming positionand thereafter raised.

Refs ring more particularly to Fig. 2, each tube rame T C0311} rises atubular bar to to which is attached a spool. bearing bracket ill. Thelatter receives the gudg-con '12 of a yarnspool 43 which may have a,pressedstcel head ale: provided with a horizontal flange or rim l5.Thelatter defines one end of the yarn space and may if desired engage afriction spring 46 mount d on top of the bar l0.

he bracket 1 he provided with a chain engaging member 4-? and there maybe a hook l8 which has supporting relation with TQESPGCl to either thebracket as shown herein or the tube frame in anv desired manner. Thebook normally engages a portion of the transporting chain and supportsthe weight ofthe tube frame. The clutch 32 has a vertical wall i!) whichengages the hook to move the same toward the spool when the tube frameis to he moved from the chain.

The matter thus far described forms no part of my present invention andmay operate substantially in the usual manner. There are two clutches,one for each end of the tube frame and my invention relates moreparticularly to devices carried by theclutch to engage the yarn spool.

During the tuft forming operation the spool is rotated to payoff yarnfor the formation of the piles and unless precautions are taken toprevent excess rotation of the s 3001 an amount of yarn will bedelivered which will be wasted. In carrying my invention into effect Iprovide a plunger 50 having a reduced end 51 which extends through aportion of the clutch 32. The plunger is provided with a shoulder 52 toengage a portion of the clutch and limit movement of the plunger towardthe tube frame. A pin or similar device 53 passes through the plungerand also extends through certain coils of a tension spring 54, the lefthand endof which as shown in Fig. 2 is retained by a screw 55 carriedbythe clutch. I

As shown in Fig. l the reduced end 51 lies to one side of the spoolbearing member 41 and chain engaging parts? of the bracket and isadapted to move against the vertical surface 56 of the spool head 44-.

In operation, as the clutch moves from the position shown in. Fig. 2 tothat sh own in Fig. 3 the plunger will engage the spool head it beforethe clutch has finished itsinovement,

thereby placing the spring 54 under tension toapply additional frictionto the spool head.

During the subsequent operation ofthe loom the transferrer. arm 26' willnormally imove downwardly to icarlyztlle tube ifmm'eito cloth formingp0sition',=bnt1 if" for "any reaso'n the tube frame shouldbefheldimra'isedaposition the. plunger will engage the lower pant' ofthe rim 45of; the sp'o'ol;- so that furtherdescent will prevented; theseconditions mee s? the plunger will engage the spool flange to arrestdownward movement of the clutch and transferrer arm before the latter isin position to engage the top of the depressor rod 24. The hook it) willtherefore be in low position and the loom will be stopped.

It is to-be understood that if the operation normal the transferrerdevice will depress the rod 24; to raise the hook 19 before the rod 18moves to the left as viewed in Fig. 1, there by permitting continuedloom operation. 7

From the foregoing it will be seen that l have provided a combinedfriction device and stop motion operating feature which may be carriedby the clutch or other part moving with thetransferrer arm or deviceeffective to stop the loom by engagement with a part of the spoolsl'iouldthe latter be held against normal downward movement.

Having thus describedimy inventionit will be seen that changes andmodifications may be made therein by those skilled in the art withoutdeparting from the spirit and scope of t tie invention and I do notwish-to be limited to the details herein disclosed,but what I claim is 2fl. In an Axminster loom having a group of tube frames which are movableprogressively to operative position meansto move the tube fran'ies oneat a time from the chain toward cloth forming position, a rotatablespool on each tube frame, a stopmotion to stop the loom when a tubeframe is improperly held-in the chain, and a device actingsimultaneously to offer resistance to rotation of the spool and also toco-act with the stop motion to prevent disabling thereof.

2. In an AXminst-er loom having a group of tube frames which are movableprogressively to operative position, means to move the tube frames oneat a time from thechain toward cloth forming positioma rotatable spoolon each tube frame, a stop motion to stop the loom when a tube frame isimproperly held in the chain, and a device acting simultaneously tooffer resistance to rotation of the spool and also to co-act with thestop motion, to prevent disabling thereof said spool having ahead with asurface having a horizontal component to co-act with the device.

3. In an Axminster loom having'a group of tube frames which are movableprogressively to operative position, means to move the tube frames oneat a time from the chain rtoward cloth forming position, a rotatable.spoolon neously to offer resistance to" rotat on of the spool andalsot'o 'co zict" witli -thestop niot'ion, to prevent" disabling thereofsaid-spool having a head providedwitlraflange extending-in a horizontaldirection't'o cooperate withthe device.

4. In an Axminster loom havmg'wtransporting chain, a stopping member tobe moved when continued loom operation is desirable and remain at restwhen loom o eration is to be arrested,- a spool carrying ra ine, a yarnspool thereon, a transfer device to move the spool carrying arm from thechain to cloth forming position, said device to have engagement with theaforesaid member, and means moving with the device to engage the spooland have holding engagement therewith to prevent engagement between thedevice and stopping member if the spool carrying frame is unable to movetoward cloth forming p0 sition.

5. In an Axminster loom having a trans porting chain, a stopping memberto be moved wh en continued loom operation is desired and to remain atrest when loom operation is to be stopped, a tube frame on thetransporting chain, a transfer device adapted to move the tube framefrom the transporting chain to cloth forming position, said deviceadapted to cooperate with and move the stopping mem-- her, a yarn spoolcarried by the tube frame and moving therewith, and an element carriedby the transferrer device to engage the spool so vthat when a tube frameis improperly held in the chain said element will co-act with the spoolto hold the transfer device in raised po sition out of engaging positionwith the memher to cause stopping of the loom.

6. In an Axminster loom having a stopping member to be moved whencontinued loom operation is desired and to remain at rest when loomoperation is to be stopped, a transporting chain, a series of tubeframes thereon, a transfer device adapted to move a tube frame from thetransporting chain to cloth forming position and also cooperate with thestopping member, a spool head and spool carried by the tube frame, andan element mounted on the transfer device and p0- sitioned to engage thespool head, the spool head limiting downward movement of the elementrelatively to the tube frame when the tube frame is improperly held inthe transporting chain, said element thereby preventing coacting betweenthe transfer device and the member stopping, whereby the latter remainseffective to stop the loom.

In testimony whereof I have hereunto af 7 fixed my signature.

JOHN LYLE=

